Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6579429 | Antifouling system for structure exposed to seawater and heat exchanger | Shigeru Sakurada, Shoji Nakashima, Tadahiko Ooba | 2003-06-17 |
| 6511586 | Marine organism prevention system for structures in seawater | Shoji Nakashima, Shigeru Sakurada, Tadahiko Oba, Hidetoshi Usui, Takahiro Kajiyama | 2003-01-28 |